A ladybug-sized sensor monitors heart and lung health in real time

The new sensor partially imitates the functions of the device for an electrocardiogram - it is using electrodes,

which are attached to the body on patches, monitor the condition of the heart: in particular, its rhythm, blood flow and other key indicators of organ health.

The sensor consists of two very thin layerssilicon located at a distance of 270 nanometers from each other - this is a distance equal to 0.005 of the width of a human hair. These silicon layers act as electrodes that carry a slight voltage, which goes into an active state in response to various sounds and vibrations from the wearer's body.

According to the researchers, the device is capable ofseparate useful sounds (for example, heart rate, respiratory rate and the presence or absence of wheezing) from ambient noise and convert them into data sets that allow the user to know their health status in real time.

The sensor is also capable of collecting data onusers ’physical activity - for example, the number of kilometers traveled by them per day - and compare them with data obtained from the heart and lungs to create an overall picture of the user's health.

In the future, the device can be used toidentifying problems with the functioning of the heart valve, as well as lung cancer - due to the characteristic weak crackling sound from the lungs, the authors of the study note.

Previously, a group of engineers learned to spraylarge active electrical interfaces to the wall. Any person can use special software to create a scheme for applying stencils, and then apply them to the wall, painting it through a spray with a conductive compound and paint.